Definitions | Id, t T, Knd, type List, True, Type, x.A(x), x:A. B(x), IdLnk,  x. t(x), a:A fp B(a), x:A B(x), State(ds), f(a), x:A B(x), x:A. B(x), Dec(P), Normal(ds), P & Q, Normal(T), DeclaredType(ds;x), source(l), P  Q, lnk(k), destination(l), s = t, Void, tag(k), IdDeq, f(x)?z, isrcv(k), b, AtomFree(T;x), Realizer, A || B,  x,y,z. t(x;y;z),  x,y,z,w,v. t(x;y;z;w;v),  x,y,z,u,v,w. t(x;y;z;u;v;w),  x,y,z,w. t(x;y;z;w), R-Feasible(R), Prop, lexpr{i} |